Only Ifugao voted in favor of autonomy, and a Supreme Court case later disallowed the creation of an autonomous region with just one province.

[1] With the rejection being apparent, it was suggested to bring the question if establishing the Cordillera Autonomous Region with Ifugao as its sole component province to the COMELEC.

Analysts said that highlanders rejected the autonomy as they see the Act as a mere tool of the economic and political classes to perpetuate their exploitation, and that vested interests of politicians and multinational corporations would even "strengthen their dominion in the region".

[5] The Commission on Elections issued a resolution on February 14, 1990 declaring that Ifugao shall form the Cordillera Autonomous Region.

[7] In March 1990, then-President Corazon Aquino ordered for the reorganization of government offices in the impending creation of the Cordillera Autonomous Region, with Ifugao as the sole province.